[WIP] Multiple-files / Multiple-steps analysis

[fraxken]

The idea for the next Major release is to find a way to build a new Analysis workflow capable of storing informations about multiple files and then re-iterating a second time.

Few things that could help;

• Design and implement an option to specificate when a probe should run (always, first iteration, others ?).
• Focus to solve: Detect usage of dynamic RegExps #42